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DIFFERENCE BETWEEN DOMINANT AND NON-DOMINANT LEG IN EXPLOSIVE ROTATIONAL LATERAL BOUND DISTANCE IN COLLEGIATE GOLFERS

Abstract

The dynamic lateral bound with 90-degree rotation (DLB) is a great way to assess lower body explosiveness with pelvic rotation in athletes. The golf swing motion relates well to the DLB as players need to have the ability to use muscles from their legs, abs, and back to produce force and torque. The front leg of a golfer is referred to as the “lead” leg and the back leg is referred to as the “trail” leg. For most people, the trail leg is the dominant leg, and the lead leg is the non-dominant leg. PURPOSE: Due to the repetitive nature of the sport and the one-sided motion of a golf swing, we hypothesized that the golfers would jump further from their dominant leg, because of the ability to generate more force and torque which applies to the trail leg in the golf swing. METHODS: Nineteen men and women Collegiate golfers (n=10 males, n=9 females) participated in a Standard GRIP Assessment where we evaluated DLB from the left and right side. The golfers performed 3 jumps generating force and torque to maximize the jumping distance from their dominant (D) and non-dominant (ND) leg. The distance the golfers jumped was measured in centimeters. RESULTS: An independent sample t-test revealed no significant (p > 0.05) difference in males between D DLB (x̄ = 193.50, SD = 31.33) and ND DLB (x̄ = 200.60, SD = 32.49), and no significant difference in females D DLB (x̄ = 51.98, SD= 7.64) ND DLB (x̄ = 52.17, SD= 4.15). CONCLUSION: The collegiate golfers assessed in this study did not perform the DLB differently from the dominant and non-dominant leg. Golfers should focus on training muscles equally on the right and left when training for strength and power. Further research should determine if DLB performance relates to golf performance (i.e. club head speed, ball speed, accuracy) or increases risk of injury if asymmetries are present in legs.

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